David barker



@eine tat-rs atrat -ffir'a Letters Patent No, 75,113, datecl'llfarcli 3, 1868.

IMPROVEMENT IN DRIERS.

dlgs dgthnlmfetnt tu im tigen tttett rtnitmrh mittig pat uitte same.

TO' ALL WHOM I'l MAY CONCERN:

Be it known that I, DAVID BARKER, of Northiieet, in the county of Kent, England, have invented certain Improvements in the Construction of Chambers for DryingArticial Fuel and other Substances and I do hereby declare the following to bea full and exact description thereof, reference being had to the accompanying drawings, in whch- A Figure 1 is a side elevation of a drying-chamber- Figure 2a transverse section, and Figure 3 a plan view of the same. l The outer walls A A of my improved drying-chamber are built of bricks,' or of other suitable materialk adapted to the purpose, angle-iron plates, B B, fig. 2 being introduced ntokor attached tothe walls, the same forming rails for the support of .the movable trays hereinafter mentioned, and for the support of transverse bars, to which are suspended the steam or hot-air pipes, which I sometimes lemploy forl the purpose of heating the chamber in connection with said movable trays, andal'so for the support of transverse division-plates C C', which I also contemplate using .for dividing the chamber into horizontal compartments, and which serve not only as partitions but as conducting-dues for hot air or steam to heat the chamber. When the drying-chamber, enclosed by the walls A A, is subdivided horizontally by 'hotvair or steam ducs, formed by lthe double divisionplates C C', the trays D, upon which the blocks of fuel or other material to Abe dried are placed, may be made to pass in loosely, as shown in ig. 2 of the drawings; but I contemplate constructing said trays D of iron, of such a width as to ex-tend eptirely across the width of the chamber, fitting closely therein, and connecting them with each other by-interlocking projections secured by a transverse pin, so that they may be united closely and yet be readily detached. These closely-fitting trays D areto be furnished withwheels to rim upon the angle-iron bars B, so thatwhen a suiiicient number .thereof are inserted in the chamber they shall theme 'selves form an upper plate for the ue c, in the place of the stationary plate C bereiubefore mentioned, and shown in the drawings, fig. 2,"or may be used alone to dividev thechamber into horizontal compartments, the plates C and C being entirel'ydispensed with,longitudinal hot-air or steam pipes, suspended from transverse bars extending across at proper intervals below the angleiron bars, being in such case usedto heat said horizontal compartments. Along the lower part of each ofthe subordinate horizontal compartments of the chamber obtained in eitherl of the modes hereinbefore described, outlet-apertures s s, iig. 1, are piercedthrough the walls AfA, to permit and secure an escape ofthe vapors resulting from the process of drying. Such outlets may be provided by means of perforated briclrs inserted in the walls for the purpose, and the removal o'f the vapors may be facilitated by the employment of afan or fans, or other analogous arrangements'. The chamber is closed at each end by iron shutters, so as to perfectly confine the heat during the operation of drying, shutters being provided, if found desirable, for closing the outlets. The chamber may also be constructed with a space in the centi-e thereof, extending longitudinally from' end to end, and extending from the top to the bottom, into which steam or hot air may. be introduced to facilitate the drying processes in the same. When several chambers are placed in juxtaposition to each other,.channels or spaces may be provided between lthe respective chambers for the'escape of the vapors resulting from the process ofdrying, such escape being facilitated by means of fans or other analogous arrangements'. i

Having thus fully described my invention, Iolaim as new, and desire Ito secure by Iietters'liatent-d Chambers for drying artificial fuel and other substances, subdivided into horizontal compartments, as hereinbefore described, by permanent or removable partitions, and provided w'ith series of lateral apertures arranged 4 along the lower part of each compartment furthe escape and withdrawal of vapors therefrom, the whole being constructed and arranged substantially as he'reiu set forth.

- DAVID BAKKER. Witnesses: v v i R. S. MoRDAnNr VAUGHAN, 54 Chancery Lane, London. M. WYNN, 24 Royal Exchange, Lon-clon. 

